/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1991, 1993, 1994
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Keith Muller of the University of California, San Diego and Lance
 * Visser of Convex Computer Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)dd.h        8.3 (Berkeley) 4/2/94
 * $FreeBSD: head/bin/dd/dd.h 341257 2018-11-29 19:28:01Z sobomax $
 */

#include <sys/types.h>
#include <sys/time.h>
#include <stdint.h>

/* Input/output stream state. */
typedef struct {
        u_char          *db;            /* buffer address */
        u_char          *dbp;           /* current buffer I/O address */
        ssize_t         dbcnt;          /* current buffer byte count */
        ssize_t         dbrcnt;         /* last read byte count */
        ssize_t         dbsz;           /* block size */

#define ISCHR           0x01            /* character device (warn on short) */
#define ISPIPE          0x02            /* pipe-like (see position.c) */
#define ISTAPE          0x04            /* tape */
#define ISSEEK          0x08            /* valid to seek on */
#define NOREAD          0x10            /* not readable */
#define ISTRUNC         0x20            /* valid to ftruncate() */
        u_int           flags;

        const char      *name;          /* name */
        int             fd;             /* file descriptor */
        off_t           offset;         /* # of blocks to skip */
        off_t           seek_offset;    /* offset of last seek past output hole */
} IO;

typedef struct {
        uintmax_t       in_full;        /* # of full input blocks */
        uintmax_t       in_part;        /* # of partial input blocks */
        uintmax_t       out_full;       /* # of full output blocks */
        uintmax_t       out_part;       /* # of partial output blocks */
        uintmax_t       trunc;          /* # of truncated records */
        uintmax_t       swab;           /* # of odd-length swab blocks */
        uintmax_t       bytes;          /* # of bytes written */
        struct timespec start;          /* start time of dd */
} STAT;

/* Flags (in ddflags). */
#define C_ASCII         0x00000001
#define C_BLOCK         0x00000002
#define C_BS            0x00000004
#define C_CBS           0x00000008
#define C_COUNT         0x00000010
#define C_EBCDIC        0x00000020
#define C_FILES         0x00000040
#define C_IBS           0x00000080
#define C_IF            0x00000100
#define C_LCASE         0x00000200
#define C_NOERROR       0x00000400
#define C_NOTRUNC       0x00000800
#define C_OBS           0x00001000
#define C_OF            0x00002000
#define C_OSYNC         0x00004000
#define C_PAREVEN       0x00008000
#define C_PARNONE       0x00010000
#define C_PARODD        0x00020000
#define C_PARSET        0x00040000
#define C_SEEK          0x00080000
#define C_SKIP          0x00100000
#define C_SPARSE        0x00200000
#define C_SWAB          0x00400000
#define C_SYNC          0x00800000
#define C_UCASE         0x01000000
#define C_UNBLOCK       0x02000000
#define C_FILL          0x04000000
#define C_STATUS        0x08000000
#define C_NOXFER        0x10000000
#define C_NOINFO        0x20000000
#define C_PROGRESS      0x40000000

#define C_PARITY        (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET)

#define BISZERO(p, s)   ((s) > 0 && *((const char *)p) == 0 && \
                             !memcmp((const void *)(p), \
                                (const void *)((const char *)p + 1), \
                                (s) - 1))